Conveyer.



Patented Jan. I, |90I.. J. G. JOHNSTON.

C 0 N V E Y E R (Applicatian led July 9, 1900.)

(No Model.)

UNITED STATES PATENT Queres.

JOSEPH G. JOHNSTON, OFDETROIT, MICHIGAN, ASSIGNOB. TO THE AMERICAN OARAND' FOUNDRY COMPANY, OF sT. Louis, MISSOURI.

CONVEYER.

SPECIFICATION forming part of Letters Patent N o. 665,227, dated January I, 1901. Application tiled July 9, 1900. Serial No. 22.989. (No model.)

city of Detroit, county'of Wayne, State of Michigan, have invented a certain new and useful Improvement in Conveyors, of which the following is a full, clear, and exact description, such as will enable others skilled in' the art to which itl appertai'ns to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure'l is a side elevational view of my improved conveyor. Fig. 2 is a top plan view of the same. Fig. 3 is an enlarged elevational view of one end of said conveyor. Fig. 4is a top lan view of the same; and Fig. 5 is a vertica ,transverse sectional view of the same, taken on the line 5 5 of Fig..1.

This .invention relates to a" new and useful improvement` in conveyors, especially designed for use-in connection with heavy bodies--snch as castings, &c.-the object being to construct a device of the character described whereby the movable portion of the conveyor lifts the load to be carried, carries it forward a short distance, deposits it upon the stationary element, and then returns to its former or lifting position.

The invention consists in the construction, arrangement, and combination of the several parts, all as will hereinafter be described and afterward pointed out in the claims.

In the drawings, A indicates a stationary frame, preferably in the form of two parallel I-beams mounted upon some firm support.

For purposes of distinction I will designate this as the stationary frame.l

B indicates a traveling frame, preferably composed of parallel I-beams, which traveling frame has its 'upper edge below the plane of the stationary frame, and for purposes of distinction I will designate the same as the traveling frame, said frame having when the device is in operationa rectilinear reciprocatory movement. I

C indicates a frame, which I will designate as the lifting-frame, said frame being preferably composed of angle-irons and provided with lattice-Work, said lifting-frame being mounted in the traveling frame and designed to have a vertical movement relative thereto,

so that the, upper faces of this lifting-framewill project above the plane of the stationary frame in order to lift the load therefrom and carry the load longitudinally upon the movementof the traveling frame and by which a step-by-step movement is imparted to the articles conveyed.

The traveling frame B is supported upon suitable roller-bearings in the form of cylinders b', mounted in suitable troughs B', (see Fig. 3,) which troughs also afford a support for the stationary frame A.

b indicates blocks provided with camgrooves, said blocks being arranged on the inner faces of the rails of the traveling frame, the cam-grooves therein preferably having inclined intermediate portions and horizontal ends. c indicates rollers mounted on the ends of a suitable transversely-arranged shaft in the lifting-frame C, said rollers ttingin the eamgrooves of blocks b, and when the liftingframe is held stationary and the traveling frame moved in the proper direction the lifting-frame is caused to ascend (to lift the weight from the stationary frame) or descend, (to deposit the weight upon the stationary frame,) as the case may be. D indicates a cylinder preferably arranged ,underneath the device and intermediate the ends thereof, the piston-rod of said cylinder extending out each end thereof and having attached thereto a wire or other-suitable cable d, passing aroundv sheaves or pulleys E, arranged under the ends of the device, as

A shown in Fig. 1, said cable, with its piston-rod portion, being practically endless. Adjusting devices cooperate with the bearings of pulleys E for the purpose of taking up slack in the cable.

b indicates a bracket riveted or otherwise secured to the under faces of the traveling frame B, said bracket being provided with means of attachment or connection to the cable d.

In operation, supposing the parts were in the positions shown in Fig. 3, the weights, which are indicated by dotted Vlines and marked W,

are supportednp-on the' lifting-fname, which 1s here shown 'in fits highest position aud-the'. its extreme position to the traveling frameat left. -Through suitable pipe. connections with cylinder D l(which are not shown, but which it will be y.stated are controlled b valves) the piston being atrachedto the cable will now move to the right, carrying with it the elevated liiting-frame and the weights. This movement is continued until the roller b'approaches'the end of its containingtrough. Just before v the roller reaches the end of its trough a stop# pletion of movement of block in the path of the lifting-frame arrests the longitudinal movement The continuation of movement of the traveling frame causes the rollers on the lifting-frame to pass from the' horizontal ends at the top of the incline-and onto said incline'.y About this time the pressure in cylinder D is reversed, so thatth'e weight on the lifting-frame will notcause fthe, same to drop quickly by reason of thei-ncli.- nations on which it is mounted, but, on the contrary, deposit its load gently onthe stationary frame, the ion to effect this, and when theload has been deposited. on the stationary frame the traveling frame is permitted to move onward a short distance, (it Will lifting-frame, the continued movement of the.4 traveling frame causing the lifting-frame to' SO rideup theinclinations of the blocks b to f again liftthe load from the stationary fram es,

the extreme rise of the lifting-frame terminating when the rollers occupy the-horizontal portions at the upper ends of the cam-faces and being preferably coincident with the comthe traveling frame from right to left. The parts now occupy the y positions shown in Fig. 3 and-are in readiness to carry the load from left to right when pressure in cylinder D is reversed, said load bei ing carried until the stop-block at the righthand end'of the device arrests th'e liftingframe and the traveling frame is permitted to travel onward, will again deposit its load on the stationary frame, as above described.

It will be obvious that While I have de- I y proper, causes the cable connected to its rod to travel, and the traveling frame of said lifting- 'frame, but permitsjthe traveling frame to continue its movement.

.this traveling yframe cylinder acting as'va cushbe remembered that the liftv ing-frame is arrested againstfurther move-l ment to the right by the stopblock,) andthis further movement'of the traveling frame is ldescribed parts and the weights upon'the returnv which'is actuated reversal ofk pressure in the'l and before the traveling frame longitudinally so that the lifting-frame' .Scritta- 'thgiQa-d as being uned .and carried 'from left right a reversal' in the inclination of the cams in the cam-blocks of the travmovement of thefloadj #VI willst'at'e that a traveling frame built in have a total length -of one hunaccordanc'e' ywith 'the accom panyi ngdrawi n gsr is designed -to .clingframe would reverse the directionfof dread-.and fifty-three feet. The cylinder D is ydesigned to be operated by compressedfair and in order to'save cable isarranged vunder oneend of the device; The rollers for .sup-

por-ting the traveling fra-mes are arranged in'troughs about sixteen feet apart throughout lthe llength of the machine.l y frame is designed to move about four feet longitudinally, so that'at each l.complete op' eration of the device the load is. carried a distance'of four feet. .I will further state that is primarily designed .to carry heavy drags'and chills and copes used The lifting-l in `casting car-wheels and vis employed for y such purposes. This form of traveling frame forms one feature of an application executed byfme of even date herewith, entitled j"-Mold ing plant, the same being filed July 9, 1900,- and serially numbered 22,988.

I am aware that minor changes in the ar- I rangement, construction, and combination-of the several parts .of my device can be made and substituted 'for those herein shown and without in the .least departing from the nature and 'principle of my invention.

Having'thus described my inven-tion, what 'I claim, and desire to secure by Letters Patent, is- A l. The combination with astationary frame, of va rectilinear reciprocatory frame arranged injuxtaposition thereto, and a. lifting-frame by, and caused to recipro# cate at an angle to, the movement of said rectilin ear reciprocatory frame; substantially as i 1 ro described..

l2. The combination port for weights, said Weights, and means on said traveler'for lifting said Weights, carrying them longitudinally'their support, and depositing said with a stationary sup weights on said support; substantially asdescri bed.

3. The combination with parallel beamsl forming a stationary frame, of parallel beams forming a traveling frame designed to move the stationary? frame, and a lifting-frame mounted upon the traveling vframe, and movable at right angles to the diof said traveling frame;

rection of movement substantially as described.k

y 4. The combination with a stationary frame, of a traveling frame moving frame, and a lifting-frame mounted in said cam-blocks; substantially as described.

5. Thecom bination with astationary frame, of a traveling, frame vmovable longitudinally thereof, troughscontaining rollers for supporting said traveling frame,cam'-blocks car- IOO of a frame traveling under longitudinally thereof, cam-'blocks mounted on said traveling ri'ed by the traveling t'rame,and a lifting-track mounted in said cam-blocks; substantially as.0 described.

6. The combination with a stationary frame or support, of a traveling frame movable longitudinally thereof, a cable for moving said traveling frame, a cylinder and piston for operating said cable, and a lifting frame mounted upon the traveling frame; substantially as described.

7. The combination with a stationary frame or support, of a traveling frame movable longitudinall y thereof and iii-juxtaposition thereto, means for moving said traveling frame, a lifting-frame carried by the travelingr frame, and stop-blocks for arresting the longitudinal movement of the'ltting-frame; -substantially as described.

S. The combination Wi th a stationary frame, of a traveling frame,A cable connected to said traveling frame for moving the same longitudinally the stationary frame, roller-bearings for said traveling frame, troughs or ways in which said rollers are arranged, camblocks carried by the traveling frame, a lifting-frame mounted in said cam-blocks, and stop-blocks for arresting the longitudinal movement of the lifting-frame; substantially as described.

9. The combination with a stationary frame, of a traveling frame Which has, when the device is in operation, 'a rectilinear reciprocatory movement, a lifting-frame, and means for cooperating with said lifting-frame to impart to the same a reciprocatory movement at an angle to the movement of said traveling trame; substantially as describedA In testimony whereof l hereunto affix my signature, in the presence of two witnesses, this 29th day of June, 1900.

, JOSEPH G. JOHNSTON.

Witnesses:

A. F. ANNESLEY,y R, N. BAKER. 

